Donald Mackay

Donald Mackay may refer to:

• Donald Mackay, 1st Lord Reay (1591–1649), Scottish peer and soldier
• Donald Mackay, 11th Lord Reay (1839–1921), Dutch-born British administrator and Liberal politician
• Donald Mackay (anti-drugs campaigner) (1933–1977), Australian politician and anti-drugs campaigner
• Donald Mackay, Baron Mackay of Drumadoon (born 1946), Scottish judge
• Donald Mackay (fur trader), Canadian trader with the North West Company
• Donald Mackay (scientist) (born 1936), Canadian scientist of environmental chemistry
• Donald McKay (1810–1880), Canadian-American shipbuilder
• Donald McKay (politician) (1836–1895), Canadian politician
• Donald George Mackay (1870–1958), Australian explorer and long-distance cyclist
• Donald Hugh Mackay (1914–1979), mayor of Calgary, Alberta
• Donald Norman McKay (1908–1988), New Zealand politician
• Don Mackay (born 1940), Scottish football player
• Donald MacCrimmon MacKay (1922–1987), Scottish physicist
• Donald Mackay, 4th Lord Reay (died 1761)
• Donald McKay (footballer), Scottish footballer in the 1890s
• Donald A. Mackay, illustrator
• Donald McKay (scout) in Modoc War, (1836-1899) Captain, U.S. Army Warm Springs Scouts
• Donald Mackay (Royal Navy officer) (1780–1850), British admiral